Intense natural selection preceded the invasion of new adaptive zones during the radiation of New World leaf-nosed bats

Autor(es)

Rossoni, Daniela M. ; Assis, Ana Paula A. ; Giannini, Norberto P. ; Marroig, Gabriel

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 7, SEP 11 2017.
• Citações Web of Science: 8

Resumo

The family Phyllostomidae, which evolved in the New World during the last 30 million years, represents one of the largest and most morphologically diverse mammal families. Due to its uniquely diverse functional morphology, the phyllostomid skull is presumed to have evolved under strong directional selection; however, quantitative estimation of the strength of selection in this extraordinary lineage has not been reported. Here, we used comparative quantitative genetics approaches to elucidate the processes that drove cranial evolution in phyllostomids. We also quantified the strength of selection and explored its association with dietary transitions and specialization along the phyllostomid phylogeny. Our results suggest that natural selection was the evolutionary process responsible for cranial diversification in phyllostomid bats. Remarkably, the strongest selection in the phyllostomid phylogeny was associated with dietary specialization and the origination of novel feeding habits, suggesting that the adaptive diversification of phyllostomid bats was triggered by ecological opportunities. These findings are consistent with Simpson's quantum evolutionary model of transitions between adaptive zones. The multivariate analyses used in this study provides a powerful tool for understanding the role of evolutionary processes in shaping phenotypic diversity in any group on both micro-and macroevolutionary scales. (AU)

• Processo FAPESP: 12/00852-4 - Estudo de mudanças morfológicas e processos evolutivos na comunidade de mamíferos do projeto Grinnell
• Beneficiário: Ana Paula Aprígio Assis
• Modalidade de apoio: Bolsas no Exterior - Estágio de Pesquisa - Doutorado
• Processo FAPESP: 10/52369-0 - Evolucao morfologica em series temporais: um estudo de caso com as comunidades de mamiferos do projeto grinnell.
• Beneficiário: Ana Paula Aprígio Assis
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 09/50378-4 - Evolução morfológica craniana em morcegos da família Phyllostomidae Gray, 1825
• Beneficiário: Daniela Munhoz Rossoni
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 14/12632-4 - Evolução morfológica e integração craniana em Filostomídeos
• Beneficiário: Daniela Munhoz Rossoni
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 11/14295-7 - Modularidade e suas consequências evolutivas
• Beneficiário: Gabriel Henrique Marroig Zambonato
• Modalidade de apoio: Auxílio à Pesquisa - Temático